- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to create a text file and insert data to that file on Android using Kotlin?
This example demonstrates how to create a text file and insert data to that file on Android using Kotlin.
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Add the following code to res/layout/activity_main.xml.
<?xml version="1.0" encoding="utf-8"?>? <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> <TextView android:id="@+id/textView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_marginTop="70dp" android:background="#008080" android:padding="5dp" android:text="TutorialsPoint" android:textColor="#fff" android:textStyle="bold" />? <EditText android:id="@+id/editText" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@+id/textView" android:layout_marginTop="40dp" android:ems="10"> <requestFocus /> </EditText> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/editText" android:layout_centerInParent="true" android:layout_margin="5dp" android:background="@android:color/holo_orange_light" android:onClick="saveTextFile" android:text="Save File" android:textColor="@android:color/background_dark" android:textStyle="bold" /> </RelativeLayout>
Step 3 − Add the following code to src/MainActivity.kt
import android.content.Context import android.os.Bundle import android.view.View import android.widget.EditText import android.widget.Toast import androidx.appcompat.app.AppCompatActivity import java.io.FileOutputStream import java.io.OutputStreamWriter class MainActivity : AppCompatActivity() { lateinit var editText: EditText override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) title = "KotlinApp" editText = findViewById(R.id.editText) } fun saveTextFile(view: View) { try { val fileOutputStream: FileOutputStream = openFileOutput("mytextfile.txt", Context.MODE_PRIVATE) val outputWriter = OutputStreamWriter(fileOutputStream) outputWriter.write(editText.text.toString()) outputWriter.close() //display file saved message Toast.makeText(baseContext, "File saved successfully!", Toast.LENGTH_SHORT).show() } catch (e: Exception) { e.printStackTrace() } } }
Step 4 − Add the following code to androidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.q11"> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click the Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen
- Related Articles
- How to create text file and insert data to that file on Android?
- How to read a simple text file in an Android App using Kotlin?
- How to create animation using XML file in an Android App using Kotlin?
- How to show current progress while downloading a file on Android App using Kotlin?
- How to create pagination text in Android using Kotlin?
- How to read a text file from resources in Kotlin?
- How can I define underlined text in an Android layout xml file using Kotlin?
- How to send an email with a file attachment in Android using Kotlin?
- How to Create and Save text file in JavaScript?
- How to draw text On image in Android using Kotlin?
- How to create a Python dictionary from text file?
- How to create scrollable TextView on Android using Kotlin?
- How to create Text to Speech in an Android App using Kotlin?
- How to read a simple text file in Android App?
- How to create a file, write data into it and read data from it on iOS?
